Is there a way to query at compile-time whether a call to
f(T)(auto ref const T x)
passed the variable `x` from a l-value or r-value?
A call to `isRef!T` inside the function `f` is always `false` for
`l-value` and `r-value` passing.
I need this to detect automatic delayed evaluation of
On Sunday, 15 January 2017 at 14:33:25 UTC, Nordlöw wrote:
Is there a way to query at compile-time whether a call to
Further, overloading such as
struct S { int x, y; }
static f(in S s) {}
static f(const ref S s) {}
f(S.init);
S s;
f(s);
fails as
declaration f is
On Sunday, 15 January 2017 at 14:33:25 UTC, Nordlöw wrote:
A call to `isRef!T` inside the function `f` is always `false`
for `l-value` and `r-value` passing.
According to
https://dlang.org/spec/template.html#auto-ref-parameters, it
should be `__traits(isRef, x)`.
On Sunday, 15 January 2017 at 17:00:41 UTC, kinke wrote:
On Sunday, 15 January 2017 at 14:33:25 UTC, Nordlöw wrote:
A call to `isRef!T` inside the function `f` is always `false`
for `l-value` and `r-value` passing.
According to
https://dlang.org/spec/template.html#auto-ref-parameters, it
sho
On Sunday, 15 January 2017 at 17:41:36 UTC, Nordlöw wrote:
This
struct S { int x, y; }
void f()(auto ref const S s)
{
pragma(msg, "type:", typeof(s), " isRef:", isRef!s);
}
f(S.init);
S s;
f(s);
prints
type:const(S) isRef:false
type:const(S) isRef:tr
